... voltage:DC3-9V,12-16.8V Solar charger S-B401Desp:Solar bag with four solar panels, can charge laptop,mobile ... phone/mp3,mp4/ radio/digital camera/music playerSpec:1.Solar Panel:18V,220MA,4.2W2.Input voltage:DC18V, ... 3.7V 8800MAH(32.5WH)5.16*6CM*4pcs Solar boardPacking:1.Packing:1pc/opp bag 8pcs/ctn2. ... G.W/N.W:18.6/17.6KGS Solar laptop charger (GF-S-B401) (laptop solar charger/solar battery charger)